[U-Boot] [PATCH v2] arm920t/at91: use new clock features from libat91-common

[Andreas Bießmann]

This patch enables the new clock features from new libat91-common. This
is a required step to get at91rm9200_usart replaced by atmel_usart
driver.

Signed-off-by: Andreas Bießmann <andreas.devel at googlemail.com>

Cc: Jens Scharsig <js_at_ng at scharsoft.de>
Cc: Eric Bénard <eric at eukrea.com>
---
changes since v1:
 - add missing cpu.c

 resent due to wrong list mail ...

 arch/arm/cpu/arm920t/at91/Makefile          |    1 +
 arch/arm/cpu/arm920t/at91/cpu.c             |   14 ++++++++++++++
 arch/arm/include/asm/arch-at91/at91rm9200.h |    1 +
 include/configs/at91rm9200ek.h              |    3 +++
 include/configs/cpuat91.h                   |    5 +++--
 include/configs/eb_cpux9k2.h                |    4 ++--
 6 files changed, 24 insertions(+), 4 deletions(-)
 create mode 100644 arch/arm/cpu/arm920t/at91/cpu.c

diff --git a/arch/arm/cpu/arm920t/at91/Makefile b/arch/arm/cpu/arm920t/at91/Makefile
index 5c71b77..872461a 100644
--- a/arch/arm/cpu/arm920t/at91/Makefile
+++ b/arch/arm/cpu/arm920t/at91/Makefile
@@ -28,6 +28,7 @@ LIB	= $(obj)lib$(SOC).o
 SOBJS	+= lowlevel_init.o
 COBJS	+= reset.o
 COBJS	+= timer.o
+COBJS	+= cpu.o
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
diff --git a/arch/arm/cpu/arm920t/at91/cpu.c b/arch/arm/cpu/arm920t/at91/cpu.c
new file mode 100644
index 0000000..b4c0175
--- /dev/null
+++ b/arch/arm/cpu/arm920t/at91/cpu.c
@@ -0,0 +1,14 @@
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/clk.h>
+
+#ifndef CONFIG_SYS_AT91_MAIN_CLOCK
+#define CONFIG_SYS_AT91_MAIN_CLOCK 0
+#endif
+
+int arch_cpu_init(void)
+{
+	return at91_clock_init(CONFIG_SYS_AT91_MAIN_CLOCK);
+}
+
diff --git a/arch/arm/include/asm/arch-at91/at91rm9200.h b/arch/arm/include/asm/arch-at91/at91rm9200.h
index ff18014..979241e 100644
--- a/arch/arm/include/asm/arch-at91/at91rm9200.h
+++ b/arch/arm/include/asm/arch-at91/at91rm9200.h
@@ -22,6 +22,7 @@
 #define __AT91RM9200_H__
 
 #define CONFIG_AT91FAMILY	/* it's a member of AT91 */
+#define CONFIG_ARCH_CPU_INIT	/* we need arch_cpu_init() for hw timers */
 #define CONFIG_ARM920T		/* This is an ARM920T Core	*/
 
 /* Periperial Identifiers */
diff --git a/include/configs/at91rm9200ek.h b/include/configs/at91rm9200ek.h
index 16cd214..ee199ab 100644
--- a/include/configs/at91rm9200ek.h
+++ b/include/configs/at91rm9200ek.h
@@ -55,6 +55,7 @@
  * CONFIG_SYS_HZ is the tick rate for timer tc0
  */
 #define AT91C_XTAL_CLOCK		18432000
+#define CONFIG_SYS_AT91_SLOW_CLOCK	32768
 #define AT91C_MAIN_CLOCK		((AT91C_XTAL_CLOCK / 4) * 39)
 #define AT91C_MASTER_CLOCK		(AT91C_MAIN_CLOCK / 3 )
 #define CONFIG_SYS_HZ_CLOCK		(AT91C_MASTER_CLOCK / 2)
@@ -66,6 +67,8 @@
 #define CONFIG_CPUAT91
 #define USE_920T_MMU
 
+#include <asm/hardware.h>	/* needed for port definitions */
+
 #define CONFIG_CMDLINE_TAG
 #define CONFIG_SETUP_MEMORY_TAGS
 #define CONFIG_INITRD_TAG
diff --git a/include/configs/cpuat91.h b/include/configs/cpuat91.h
index cfaef15..2bda72b 100644
--- a/include/configs/cpuat91.h
+++ b/include/configs/cpuat91.h
@@ -37,6 +37,7 @@
 #endif
 
 #define AT91C_XTAL_CLOCK		18432000
+#define CONFIG_SYS_AT91_SLOW_CLOCK	32768
 #define AT91C_MAIN_CLOCK		((AT91C_XTAL_CLOCK / 4) * 39)
 #define AT91C_MASTER_CLOCK		(AT91C_MAIN_CLOCK / 3)
 #define CONFIG_SYS_HZ_CLOCK		(AT91C_MASTER_CLOCK / 2)
@@ -45,11 +46,11 @@
 #define CONFIG_ARM920T
 #define CONFIG_AT91RM9200
 #define CONFIG_CPUAT91
-#define CONFIG_AT91FAMILY
-
 #undef CONFIG_USE_IRQ
 #define USE_920T_MMU
 
+#include <asm/hardware.h>	/* needed for port definitions */
+
 #define CONFIG_CMDLINE_TAG
 #define CONFIG_SETUP_MEMORY_TAGS
 #define CONFIG_INITRD_TAG
diff --git a/include/configs/eb_cpux9k2.h b/include/configs/eb_cpux9k2.h
index e12770a..25b28f5 100644
--- a/include/configs/eb_cpux9k2.h
+++ b/include/configs/eb_cpux9k2.h
@@ -36,7 +36,7 @@
 #define CONFIG_VERSION_VARIABLE
 #define CONFIG_IDENT_STRING	" on EB+CPUx9K2"
 
-#include <asm/arch/hardware.h>	/* needed for port definitions */
+#include <asm/hardware.h>	/* needed for port definitions */
 
 #define CONFIG_MISC_INIT_R
 
@@ -69,7 +69,7 @@
 #define CONFIG_SYS_HZ		1000
 #define CONFIG_SYS_HZ_CLOCK 	(AT91C_MASTER_CLOCK / 2)
 
-#define AT91_SLOW_CLOCK			32768		/* slow clock */
+#define CONFIG_SYS_AT91_SLOW_CLOCK	32768		/* slow clock */
 
 #define CONFIG_CMDLINE_TAG		1
 #define CONFIG_SETUP_MEMORY_TAGS	1
-- 
1.7.5.4